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Details, datasheet, quote on part number:TPS2057D
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| Part: | TPS2057D |
| Category: | Power Management => Power Distribution/Switches => USB Power Controllers/Switches => USB Power Switches |
| Description: | ti TPS2057, 0.345A, 2.7-5.5V Triple (2In/3Out) Hi-side MOSFET, Fault Report, Act-high Enable |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS2057D datasheet File size : 431 kB |
| Request For quote: | Find where to buy TPS2057D
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Datasheet text preview:
TPS2047, TPS2057 TRIPLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS194 APRIL 1999
features
typical applications
D D D D D D D D D D D D
135-m -Maximum (5-V Input) High-Side MOSFET Switch 250 mA Continuous Current per Channel Independent Short-Circuit and Thermal Protection With Overcurrent Logic Output Operating Range . . . 2.7-V to 5.5-V Logic-Level Enable Input 2.5-ms Typical Rise Time Undervoltage Lockout 20 µA Maximum Standby Supply Current Bidirectional Switch Available in 16-pin SOIC Package Ambient Temperature Range, 40°C to 85°C 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection
D D D D
Notebook, Desktop and Palmtop PCs Monitors, Keyboards, Scanners, and Printers Digital Cameras, Phones, and PBXs Hot-Insertion Applications
TPS2047 D PACKAGE (TOP VIEW) TPS2057 D PACKAGE (TOP VIEW)
GND1 IN1 EN1 EN2 GND2 IN2 EN3 NC
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
OC1 OUT1 OUT2 OC2 OC3 OUT3 NC NC
GND1 IN1 EN1 EN2 GND2 IN2 EN3 NC
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
OC1 OUT1 OUT2 OC2 OC3 OUT3 NC NC
description
NC No internal connection
The TPS2047 and TPS2057 triple power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely. These devices incorporate in single packages three 135-m N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external components, allows operation from supplies as low as 2.7 V. When the output load exceeds the current-limit threshold or a short is present, the TPS2047 and TPS2057 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch causing the junction temperature to rise, a thermal protection circuit shuts off the switch in overcurrent to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present. The TPS2047 and TPS2057 are designed to limit at 0.44-A load. These power-distribution switches are available in 16-pin small-outline integrated circuit (SOIC) packages and operate over an ambient temperature range of 40°C to 85°C.
AVAILABLE OPTIONS TA 40°C to 85°C ENABLE Active low RECOMMENDED MAXIMUM CONTINUOUS LOAD CURRENT (A) 0.25 TYPICAL SHORT-CIRCUIT CURRENT LIMIT AT 25°C (A) 0.44 PACKAGED DEVICES SOIC (D) TPS2047D TPS2057D
40°C to 85°C Active high 0.25 0.44 The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2047DR)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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TPS2047, TPS2057 TRIPLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS194 APRIL 1999
TPS2047 functional block diagram
OC1 GND1 EN1 Driver Charge Pump CS UVLO Power Switch IN1 Charge Pump Driver EN2 Thermal Sense OC3 GND2 EN3 Driver Charge Pump CS UVLO Power Switch OUT3 Current Limit Thermal Sense Current Limit OC2 CS OUT2 OUT1 Current Limit Thermal Sense
IN2 Current sense
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS2047, TPS2057 TRIPLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS194 APRIL 1999
Terminal Functions
TERMINAL NAME EN1 EN2 EN3 EN1 EN2 EN3 GND1 GND2 IN1 IN2 NC OC1 OC2 OC3 OUT1 OUT2 OUT3 NO. TPS2047 3 4 7 1 5 2 6 8, 9, 10 16 13 12 15 14 11 TPS2057 3 4 7 1 5 2 6 8, 9, 10 16 13 12 15 14 11 O O O O O O I I I I I I I I Enable input. Logic low turns on power switch, IN1-OUT1. Enable input. Logic low turns on power switch, IN1-OUT2. Enable input. Logic low turns on power switch, IN2-OUT3. Enable input. Logic high turns on power switch, IN1-OUT1. Enable input. Logic high turns on power switch, IN1-OUT2. Enable input. Logic high turns on power switch, IN2-OUT3. Ground Ground Input voltage Input voltage No connection Overcurrent. Logic output active low, IN1-OUT1 Overcurrent. Logic output active low, IN1-OUT2 Overcurrent. Logic output active low, IN2-OUT3 Power-switch output, IN1-OUT1 Power-switch output, IN1-OUT2 Power-switch output, IN2-OUT3 I/O DESCRIPTION
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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